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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qglobal.h>
#include "qsystemerror_p.h"
#if !defined(Q_OS_WINCE)
# include <errno.h>
# if defined(Q_CC_MSVC)
# include <crtdbg.h>
# endif
#endif
#ifdef Q_OS_WIN
#include <windows.h>
#endif
QT_BEGIN_NAMESPACE
#if !defined(Q_OS_WIN) && !defined(QT_NO_THREAD) && !defined(Q_OS_INTEGRITY) && !defined(Q_OS_QNX) && \
defined(_POSIX_THREAD_SAFE_FUNCTIONS) && _POSIX_VERSION >= 200112L
namespace {
// There are two incompatible versions of strerror_r:
// a) the XSI/POSIX.1 version, which returns an int,
// indicating success or not
// b) the GNU version, which returns a char*, which may or may not
// be the beginning of the buffer we used
// The GNU libc manpage for strerror_r says you should use the the XSI
// version in portable code. However, it's impossible to do that if
// _GNU_SOURCE is defined so we use C++ overloading to decide what to do
// depending on the return type
static inline QString fromstrerror_helper(int, const QByteArray &buf)
{
return QString::fromLocal8Bit(buf);
}
static inline QString fromstrerror_helper(const char *str, const QByteArray &)
{
return QString::fromLocal8Bit(str);
}
}
#endif
static QString standardLibraryErrorString(int errorCode)
{
const char *s = 0;
QString ret;
switch (errorCode) {
case 0:
break;
case EACCES:
s = QT_TRANSLATE_NOOP("QIODevice", "Permission denied");
break;
case EMFILE:
s = QT_TRANSLATE_NOOP("QIODevice", "Too many open files");
break;
case ENOENT:
s = QT_TRANSLATE_NOOP("QIODevice", "No such file or directory");
break;
case ENOSPC:
s = QT_TRANSLATE_NOOP("QIODevice", "No space left on device");
break;
default: {
#if !defined(QT_NO_THREAD) && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && _POSIX_VERSION >= 200112L && !defined(Q_OS_INTEGRITY) && !defined(Q_OS_QNX)
QByteArray buf(1024, '\0');
ret = fromstrerror_helper(strerror_r(errorCode, buf.data(), buf.size()), buf);
#else
ret = QString::fromLocal8Bit(strerror(errorCode));
#endif
break; }
}
if (s) {
// ######## this breaks moc build currently
// ret = QCoreApplication::translate("QIODevice", s);
ret = QString::fromLatin1(s);
}
return ret.trimmed();
}
#ifdef Q_OS_WIN
static QString windowsErrorString(int errorCode)
{
QString ret;
wchar_t *string = 0;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
errorCode,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPWSTR)&string,
0,
NULL);
ret = QString::fromWCharArray(string);
LocalFree((HLOCAL)string);
if (ret.isEmpty() && errorCode == ERROR_MOD_NOT_FOUND)
ret = QString::fromLatin1("The specified module could not be found.");
return ret;
}
#endif
#ifdef Q_OS_SYMBIAN
static QString symbianErrorString(int errorCode)
{
switch (errorCode) {
case KErrNotFound:
return QLatin1String("not found");
case KErrCancel:
return QLatin1String("cancelled");
case KErrNoMemory:
return QLatin1String("out of memory");
case KErrNotSupported:
return QLatin1String("not supported");
case KErrBadHandle:
return QLatin1String("bad handle"); //KERN-EXEC 0 panic is more likely
case KErrAlreadyExists:
return QLatin1String("already exists");
case KErrPathNotFound:
return QLatin1String("path not found");
case KErrInUse:
return QLatin1String("in use");
case KErrNotReady:
return QLatin1String("not ready (e.g. FS dismounted, no memory card)");
case KErrCorrupt:
return QLatin1String("corrupt");
case KErrAccessDenied:
return QLatin1String("access denied");
case KErrLocked:
return QLatin1String("locked");
case KErrWrite:
return QLatin1String("incomplete write error");
case KErrDisMounted:
return QLatin1String("file system dismounted during operation"); //i.e. a forcible dismount was done while we had files open
case KErrEof:
return QLatin1String("end of file");
case KErrDiskFull:
return QLatin1String("no space in file system");
case KErrBadName:
return QLatin1String("invalid filename");
case KErrTimedOut:
return QLatin1String("timed out");
case KErrBadDescriptor:
return QLatin1String("bad descriptor (passed address on stack to async call?)");
case KErrAbort:
return QLatin1String("aborted");
case KErrTooBig:
return QLatin1String("too big"); //e.g. trying to open a >2GB file with 32 bit API
case KErrBadPower:
return QLatin1String("insufficient power");
case KErrDirFull:
return QLatin1String("no space in directory table");
case KErrHardwareNotAvailable:
return QLatin1String("hardware not available");
case KErrSessionClosed:
return QLatin1String("session closed");
case KErrPermissionDenied:
return QLatin1String("permission denied");
default:
return QString(QLatin1String("symbian error %d")).arg(errorCode);
}
}
#endif
QString QSystemError::toString()
{
switch(errorScope) {
case NativeError:
#if defined (Q_OS_WIN)
return windowsErrorString(errorCode);
#elif defined (Q_OS_SYMBIAN)
return symbianErrorString(errorCode);
#else
//unix: fall through as native and standard library are the same
#endif
case StandardLibraryError:
return standardLibraryErrorString(errorCode);
default:
qWarning("invalid error scope");
//fall through
case NoError:
return QLatin1String("No error");
}
}
QT_END_NAMESPACE
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